Many patients with periodontal disease often find that their teeth are slowly dislocated, and there is a gap between the front teeth, which is getting bigger and bigger, seriously affecting the facial beauty, and many patients are very upset. In fact, this situation can be solved by corrective measures. After systematic periodontal treatment, periodontitis can be controlled, and patients can master their own methods of maintaining oral hygiene, so they can wear fixed appliances for treatment. Generally, after orthodontic treatment with periodontal disease, it is necessary to stick a fixed retainer wire on the lingual side of the tooth to permanently maintain the position of the tooth and also play a role in maintaining periodontal health.